/* some common style */
header,footer,section,nav {
    display: block;
}
body,.nav,.nav-list {
    margin: 0;
    padding: 0;
    border: none;
}
body {
    font-size: 16px;
}
a {
    text-decoration: none;
}
.header,.practice,.blog,.project,.contact-us {
    padding: 0 calc(50% - 450px);
    border: 1px solid red;
}
/* header */
.header {
    position: fixed;
    z-index: 999;
    padding: 0 calc(50% - 450px);
    transition: all 1s ease-in-out;
}
.header_status{
    padding-top: 0;
    box-shadow: 0px 1px 1px rgba(0,0,0,0.5);
    background: rgba(255,255,255,1);
    transition: all 1s ease-in-out;
}
.h-container {
    border: 1px solid blue;
}
.nav-log {
    display: inline-block;
    float: left;
    box-sizing: border-box;
    height: 50px;
}
.nav-log-text {
    color: #FFFFFF;
    font-weight: normal;
}
.nav-log-description {
     color: rgba(255,255,255,.5);
     font-size: 0.8em;
}
.nav{
    display: inline-block;
    float: right;
    border: 1px solid red;
}
.nav-color {
    color: #FFFFFF;
    transition: all 1s ease-in-out;
}
.nav-color_status{
    color: rgba(0,0,0,0.8);
    transition: all .1s ease-in-out;
}
.nav-color.active {
    color: #C2534A;
}
.nav-list>li {
    display: inline-block;
    border: 1px solid red;
    height: 50px;
    font-size: 1.2em;
    color: #FFFFFF;
    line-height: 50px;
    box-sizing: border-box;
}
.clear::after{
    content: "";
    clear: both;
    display: block;
}
/* banner */
.banner-item1 {
    background: url("/images/banner-bg-1.jpg") no-repeat;
    background-size: cover;
}
/* 各个section通用文本样式 */
.section-common-title {
    margin: 40px;
    font-size: 2.0em;
    text-align: center;
}
.section-common-paragraph {
    margin: 20px;
    text-align: center;
}
/* section practice */
.practice-wrap {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    width:900px;
}
@media screen and (max-width: 900px) {
    .practice-wrap .blog-wrap{
        width: 100%;
    }
}
.practice-wrap-item {
    margin: auto;
    width: 25%;
    height: 80%;
    background: #00FF00;
    border: 1px solid red;
}
.practice-item {
    height: 100%;
}
.practice-img {
    height: 80%;
    width: 100%;
    background: #0000FF;
}
.practice-img-title {
    border: 1px solid red;
    margin: 2px;
    text-align: center;
}
/* blog */
.blog-wrap {
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    min-width:900px;
}
.blog-wrap-item {
    margin: auto;
    width: 40%;
    height: 90%;
    background: #00FF00;
    /* border: 1px solid red; */
}
.blog-wrap-hottitle {
    height: 2em;

    /*    padding: 20px 0 0 0; */
    text-align: center;
}
.blog-item {
    height: 20%;
}
.blog-img {
    display: inline-block;
    margin-left: 20px;

    height: 100%;
    width: 25%;

    background: #0000FF;
    border-radius: 50%;
}
.blog-img-title {
    display: inline-block;
    vertical-align: top;

    position: relative;
    top: 2em;
    width: 60%;

    text-align: center;
}
/* footer */
